baber/WOPTO huggingface dataset:
Patent GB-817131-A (GB)
Title: Method of producing artificial threads and like articles from viscose
IPC: G21C3/12
Filed: 1955-09-15
Abstract: Regenerated cellulose filaments, films and like products consisting entirely of skin are made by extruding viscose into an aqueous spinning bath in the presence of a small proportion of an alkylene oxide adduct of urea or biuret.  Either the viscose contains at least 0.25 per cent of the adduct (based on cellulose), or the bath contains at least 0.05 per cent of the adduct, or both the viscose and the bath contain the adduct in not less than the above proportions respectively.  The bath contains 10-25 per cent of sodium sulphate, 3-15 per cent of zinc sulphate (or at least 3 per cent of zinc sulphate and a water-soluble sulphate of a heavy metal other than zinc, e.g. iron, manganese or nickel, the total percentage of heavy metal sulphate, calculated as zinc sulphate, not exceeding 15), and sulphuric acid in a concentration exceeding the slubbing point but below the concentration at which neutralization of the caustic soda in the viscose is so rapid as to produce products consisting of skin and core.  The proportion of adduct in the viscose is preferably 0.5-2.5 per cent, based on cellulose, and the proportion of adduct in the bath is preferably about 0.1 per cent. The adduct may be added at any stage in the production of the viscose, which may contain 6-8 per cent of cellulose, 4-8 per cent of caustic soda and (on the weight of the cellulose) 30-50 per cent of carbon disulphide.  The viscose when spun may have a salt test above about 7 and preferably above about 9. The products may be stretched after leaving the initial coagulating and regenerating bath and may then be passed through a second aqueous bath containing about 1-5 per cent of sulphuric acid and 1-5 per cent of sodium sulphate, with or without a small proportion of zinc sulphate.  Products produced as described above have high toughness and improved flexing life.
Patent GB-318264-A (GB)
Title: Improvements in or relating to apparatus for weighing conveyed loads
IPC: G01G23/37
Filed: 1929-08-31
Abstract: 318,264. Chatillon & Sons, J., (Assignees of Messiter, E. H.). Sept. 1, 1928, [Convention date]. Integrating. - Apparatus for weighing a conveyed load comprises an element having a contact surface of variable width and a co-operating means arranged repeatedly to make series of contacts with the surface of variable width along a line across the width of the surface, (the position of which line longitudinally of the area is determined by the weight of the load) together with means for varying the position of the successive contacts along the line. A portion of a moving belt conveyer 5 is supported on a weighing frame 6 the movements of which are transmitted through levers 12, 9 in opposition to weighing- springs 16 and raise or lower a circuit-closing member 7 in proportion to the load on the weighing frame. The member 7 bears resiliently against a vertically-fluted drum 20 connected by gearing to a drum 21 so that the drums, which are actuated by the conveyer, rotate at different speeds. The drum 21 is provided with a contact surface 24 of variable width constructed of conducting material, the remainder of the drum surface being of insulating material. In action, the flutes of the drum 20 move the circuit-closing member 7 laterally into repeated contact with the drum 21 so as repeatedly to close an electrical circuit through the drums and through a counter indicating pounds weight on dials 30, 31, 32. The number of electrical impulses transmitted to the counter depends on the position of the circuitclosing member 7 relative to the surface 24 and is proportional to the load passing over the weighing frame. The speeds of the two drums and the spacing of the flutes on the drum 20 are arranged so that the points of contact between the element 7 and drum 21 differ during successive revolutions, thereby providing greater accuracy in the weighing operations. Indicating-mechaniem. - The weight on the weighing frame 6 at any particular time may be indicated by a beam of light thrown on to a screen 46 from a projector 45 on the weigh-beam 9 the light being reflected, by mirrors 47, 48. The projecting mechanism is adapted to project also an image of a vernier scale on to the scale 46. Permanent records, apparatus for giving. - A number of pens 34, 35, 36 are electrically connected to the dials 30, 31, 32 of the weight counter so as to mark a clockwork driven dial 33 each time one of the counter dials advances one step.
Patent GB-1201896-A (GB)
Title: Improvements in dry shavers
Inventor: BELZ AUGUST
IPC: B26B19/38
Filed: 1969-05-23
Abstract: 1,201,896. Dry shavers. A. BELZ. 19 May, 1969 [29 May, 1968], No. 26586/69. Heading B4B. A dry shaver includes an electric motor 12 for driving a cutter head 14, a battery holding compartment 1, and a switch 31-33 for activating the battery/motor circuit; the switch includes a spring contact 25 forming a first motor terminal and bearing a non-conducting member 32 normally biased by an operating member 18, such as a cap, to maintain the end 31 of the contact out of engagement with a conductive housing 2 connected electrically through the battery 6 to a second motor terminal 24. The housing 2 and compartment 1 are detachably secured by a conducting bayonet joint 4, and a spring 7 completes the circuit between the bottom 9 of the compartment 1 and the battery 6. The member 32 may extend through an opening 33 in the housing 2 to complete the circuit on removing the push-on cap 18. Alternatively, Figs. 2-3 (not shown), a fluted ring (35) rotatable on the housing 2 and having an opening (36) for the member 32 may operate the switch.
Patent GB-318015-A (GB)
Title: An improved device for sharpening razor blades
IPC: B24D15/08
Filed: 1928-09-17
Abstract: 318,015. Avignon, E. G. Sept. 17, 1928. Addition to 280,931. Stropping - apparatus. - The device described in the parent Specification is provided with means for lifting the blade from the strop at the ends of the stroke and for positively limiting the oscillations of the blade holder. The cleeks 18, 19 of the blade holder are provided with extensions 27 adapted to engage stops 28 secured near the strop-handles P so as to lift the blade from the strop and avoid damage to the strop on reversal. The cleeks may be connected near the points of the extensions by pins 29, and, in a modification, the stops 28 may be arranged to strike the centre of these connecting pins in order to reverse the blade. An adjustable striking plate 31 may be connected to the side plates to determine the extent of the movement of the blade holder and to maintain the correct stropping angle, the plate being adjustable as the blade becomes worn. In a modification, the striking plate may be fitted with screwed pins having a micrometric adjustment. In a further modification, Fig. 6, the axles 6 of the rollers 12 may perform the functions of the striking plate.
Patent GB-462915-A (GB)
Title: Flushing apparatus for water closets or the like
IPC: E03D1/08
Filed: 1935-09-30
Abstract: 462,915. Siphon-discharge water-wastepreventers. DAVIES, P. T. Sept. 30, 1935, No. 26910. [Class 26] In a siphon - discharge water - waste-preventer of the kind in which the discharge is initiated by a vertically - ascending piston, the latter is raised by a link or links 16 which is or are connected to the operating spindle 10 through a screwed pin 14 and a fitting 11 which comprises a split socket having a square opening at one end for the spindle and split lugs at the other which are perforated to receive the pin 14; the perforation in one lug is plain and that in the other is screwed and a nut 17 on the screwed pin serves to close the socket and to lock the pin in the adjusted position.
Patent GB-857381-A (GB)
Title: Improvements in or relating to handles for mattresses
IPC: A47C31/08
Filed: 1958-08-21
Abstract: 857,381. Mattresses. BEE, J. R. Aug. 14, 1959 [Aug. 21, 1958], No. 26910/58. Class 52(4) A combined handle-ventilator unit for a mattress has a backing plate 1 secured to the mattress by ventilator elements 2 passing through holes 5 in the plate and having slots 6, 7, 8 through which passes a handle 3, the ends 13, 13 of which are fastened together by a wire fastener 15. The sleeve-like elements 2 are engaged by deformable teeth 12 formed about holes 5. In a modification, Fig. 5, the handle 16 is of rope passing through holes 18, 19, 20 and the elements 2 are secured by washers 22 having deformable teeth 12.
Patent GB-743251-A (GB)
Title: Improvements relating to gyroscopic apparatus
Inventor: FORD JOHN ARTHUR
IPC: G01C19/42
Filed: 1952-10-27
Abstract: 743,251. Dynamo-electric machines. FALREY AVIATION CO., Ltd. Oct. 27, 1953 [Oct. 27, 1952; Oct. 20, 1953], Nos. 26965/52 and 28999/53. Class 35. [Also in Groups XXXVIII and XL (c)] A rate-of-turn gyroscope includes a dynamoelectric generator, the generator rotor forming a part of the gyro-rotor and its stator being secured to the support for the gyro-frame so that the voltage generated in a function of the angle of deflection of the frame relative to the support and hence of the rate of turn, and its frequency is a measure of the rotor speed. Gyro-generator construction, Figs. 1, 2. Two wind-driven gyro-rotors 10 are mounted in respective frames 11 each of which is deflectable about an axis D-D under the constraint of a torsion bar 17 in the casing support 16. The deflection axes D-D of the respective gyros are perpendicular so that rate of turn about two axes C-C perpendicular to both the axes D-D and R-R (the rotor axes) are measured by the respective generator outputs. Each rotor 10 has an inset disc-shaped permanent magnet 26 magnetized diametrally and rotated within a coil 27 carried by an insulating ring 29 secured by legs 30 to the casing. A ferro-magnetic cylindrical shell 32 completes the magnetic circuit. Normally, i.e. with the torsion bar unstrained, the corresponding magnet 26 and coil 27 are co-planar giving zero output, strain of the torsion bar proportional to the rate of turn, yielding a corresponding output. To determine the sense of the rate of turn, the coil 27 may be mounted obliquely to produce a datum voltage at zero rate of turn, this voltage then increasing or decreasing according to the sense of the rate of turn. Two such coils mounted obliquely in opposite sense so as to yield respective datum voltages of equal magnitude but opposite phase may be connected in opposition to produce the output signal which is zero at zero rate of turn and varies in magnitude and phase sense according to the magnitude and sense of the rate of turn. In a modification, Figs. 5, 6 (not shown), each rotor magnet co-operates with two pairs of solenoids woimd on two U- shaped cores the reluctance of the two magnetic circuits varying differentially with the rate of turn.
Patent GB-811591-A (GB)
Title: An improved fastener
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1956-09-04
Abstract: 811,591. Stud and socket fasteners; hinges. F. T. PRODUCTS Ltd. Sept. 3, 1957 [Sept. 4, 1956], No. 27013/56. Classes 44 and 65(2) A fastener for removably attaching e.g. a pin 24 to an apertured plate 25 is formed of U-shape from a strip of spring metal so as to have a nose 10, a pair of spaced limbs 11, 12, a neck 13 and a pair of outwardlyflared lips 14, 15, the nose 10 and a portion 11A, 12A of each limb adjacent thereto being of reduced width to form shoulders 16, 17. The portions 11A, 12A are each formed with a pair of prongs 22, 23 cut and bent out of their edges and, when the fastener is pushed into the aperture 26 in the plate 25, the prongs 22, 23 will snap into engagement with the underside of the plate with the shoulders 16, 17 abutting against the upper side thereof. The fastener may be removed from the aperture 26 by pinchimg together the limbs 11, 12, and the pin 24 is engaged in or disengaged from the fastener by snapping it through the neck 13. The pin 24 may be carried by a cover member for attaching the latter to the plate 25, or it may form a hinge pin.
Patent GB-1074645-A (GB)
Title: Process for the production of polyurethanes
Inventor: MARKLOW RAYMOND JOSEPH
IPC: C08G18/08
Filed: 1965-06-25
Abstract: Elastomeric polyurethanes are prepared by reacting an organic polyisocyanate with an hydroxyl-ended polymer in the presence of 0.001% to 0.1%, by weight of the hydroxylended polymer of thioglycollic acid.  Aromatic diisocyanates such as tolylene-2,4 and -2,6-diisocyanates and mixtures thereof and 4,41-diisocyanato - diphenylmethan are preferred, whilst the hydroxyl-ended polymer is suitably a polyester containing a small amount of branching e.g. those derived from acids such as adipic acid with glycols such as ethylene, diethylene, propylene and butylene glycols together with small proportions of polyhydric alcohols having more than two hydroxyl groups such as glycerol, trimethylol propane, hexanetriol and pentaerythritol. The process is conveniently carried out by adding the thioglycollic acid to the dry hydroxyl-ended polymer, which mixture is then reacted with the polyisocyanate.
Patent GB-884740-A (GB)
Title: Improvements relating to gas producers
IPC: F23K3/00
Filed: 1958-08-22
Abstract: 884,740. Gasifying carbonaceous material. LENTJES STIFTUNG, FERDINAND., [trading as LENTJES KESSELSCHIEDE UND MASCHINENBAU FERDINAND]. Aug. 22, 1958 [Sept. 30, 1957], No. 27069/58. Class 55 (1). A gas producer for the continuous production of CO-containing gas comprises a reaction chamber having a fuel-retaining wall consisting of a number of pipes spaced apart to allow gas to pass between them but sufficiently close together to prevent fuel from being carried through them by the flow of gas, a charging device whereby fuel is continuously charged in compacted condition to the reaction chamber, an inlet through which an oxygen containing gas is passed at 40- 100 metres per second, and means for discharging slag and combustion residue from the reaction chamber. As shown, fuel stored in container 1 is charged to reaction chamber 4. A slag chamber 5 fitted with discharge device 7 is arranged below reaction chamber 4, and chamber 4 and container 1 have a lance 6 passing through their centres for the supply of air. Compacting of the fuel is effected by sliding plate 9 connected by rods 11 to lever linkage 13, 14 which carries a weight 12. Reaction chamber 4 is surrounded by an annular wall 2 of pipes 16 through which water passes and which are arranged closely together. Alternatively the pipes may be arranged in conical or D-shaped disposition. Gas discharge chamber 3, which may he provided with heat exchange pipes 19 in region 18, which progressively tapers towards gas outlet 17, is disposed around the ring of pipes 2. Regulation of gas flow may be effected by use of control valve 20 and throttle valves 21, 22. A thermometer 23 may be positioned at outlet 17 and the temperature within chamber 4 may be checked through suction pipes 24 having pyrometers installed in them. A casing 27 may surround chambers 3, 4 and preferably consists of double-walled steel, so that together with pipes 19 it forms a closed cooling system. Preferably air lance 6 is axially adjustable and it may be provided with an internal pipe 33 with openings for steam supply. Additionally lance 6 may be provided with welded projections on its outer periphery and it may be associated with means to impart rotary movement thereto. Slag discharge device 7 preferably consists of worm conveyer 35. In a modification (not shown) the gas producer is constructed in the form of a boiler fired by a travelling grate.
Patent GB-902210-A (GB)
Title: Improvements in or relating to temperature control systems
IPC: F24F11/08
Filed: 1958-08-22
Abstract: 902,210. Automatic temperature - control systems. MINNEAPOLIS - HONEYWELL REGULATOR CO. Aug. 22, 1958 [Aug. 26, 1957], No. 27073/58. Class 38 (4). In an air-conditioning system for a space 10, an internal thermostat 30 controlling a fuel valve 23 of a conditioning apparatus 15 is affected by an external thermostat 50 responsive to outside air temperature and wind-velocity. A switch 32 of the thermostat 30 closes with reduction in temperature of the space to operate the fuel valve and energize an adjustable heater 43 for a bi-metal strip 31. The space is maintained at a temperature determined by the setting of switch 32 and the time taken by the heater 43 to break the circuit by deflection of the bi-metal strip 31. A switch 52 of the external thermostat 50 is closed when the outside air temperature falls below a predetermined value, to energize a heater 53, for a bi-metal strip 51, and shunt an additional heater 66 for the bi-metal strip 31 to raise the control-point of the internal thermostat. In a modification, a control-valve of a cooling system is operated by the thermostat 30, the switch being arranged to close with increase in temperature and heater 43 disconnected. In a further modification, the internal air temperature is raised with increase in outside air temperature by arranging a switch 54 to energize the heater 66.
Patent GB-989459-A (GB)
Title: Improvements relating to metal phthalocyanine dyestuffs and their use
IPC: C08K5/43
Filed: 1963-07-09
Abstract: Amines of general formula <FORM:0989459/C2/1> in which alkylene is an alkylene group of 2-3 carbon atoms, A is an alkyl radical of preferably 1-12 carbon atoms and X is 1 or 2 are prepared by adding acrylonitrile or acrylamide to the corresponding alkylene glycol or dialkylene glycol monoalkyl ethers and subsequently hydrogenating the nitrile compound obtained, or by degradation of the amide by the Hoffmann method or by reaction of the corresponding chloro or sulpho ester derivatives with ammonia.ALSO:Synthetic resin and cellulose derivative lacquers, plastic compositions and printing compositions are coloured with metal phthalocyanine dyestuffs containing four substituted sulphonamide groups (see Division C4).  In an example nitrocellulose, phthalic acid dibutyl ester and coconut oil fatty acid modified alkyd resin are dissolved in a mixture of butyl acetate, ethyl acetate, toluene, butanol and 2-ethoxy-ethanol, and a copper phthalocyanine dyestuff added.  This mixture is used as a lacquer.  In another example, 2-ethoxy-ethanol, a quantity of a ketone formaldehyde resin and a copper phthalocyanine dyestuff are dissolved in ethylene glycol monomethyl ether and ethyl alcohol and a quantity of trixylyl phosphate is added, this mixture is used for printing on aluminium.ALSO:The invention comprises phthalocyanine dyes of the general formula <FORM:0989459/C4-C5/1> n which Pc is a copper, nickel or cobalt metal phthalocyanin nucleus, A1, A2, A3 and A4 each represent an alkyl radical, a, b, c and d have the values 1 o 2, each of m, n, p, q, r, s, t and u is 2 or 3 and the four sulphamide chains may be the same or or different.  The dyes are made by reacting one mol. of a metal phthalocyanine tetrasulphonic acid halide with 4 mols. of an amine of general formula <FORM:0989459/C4-C5/2> in which "alkylene" is an alkylene radical having 2 or 3 carbon atoms, A is an alkyl radical and X has the value 1 or 2.  Mixtures of the amines may be used.  The acid chloride derivatives are preferably reacted with the amines, and the phthalocyanine nucleus may be further substituted by halogen atoms.ALSO:Aluminium sheet is coated by spraying with a lacquer comprising nitrocellulose, petholic acid dibutyl ester, coconut oil fatty acid modified alkyd resin, butyl acetate, ethyl acetate, toluene, butanol, ethoxyethanol, and a solution of a dyestuff of copper phthalocyanine tetrasulphonic acid chloride reacted with ethylene glycol-o-ethyl-o1-(g -amino propyl) diether in ethylene glycol monoethyl ether.
Patent GB-769584-A (GB)
Title: Improvements in or relating to means for compensating transistor circuit arrangements in relation to external conditions
Inventor: WOLFENDALE ERIC
IPC: H03F1/30
Filed: 1954-09-20
Abstract: 769,584. Transistor amplifier stabilizing circuits. MULLARD RADIO VALVE CO., Ltd. July 19, 1955 [Sept. 20, 1954], No. 27146/54. Class 40(6) In an amplifier comprising a transistor T1 with a temperature sensitive characteristic, an additional transistor T2 is arranged to compensate for the temperature effect in the amplifying transistor. Variations in the temperature - sensitive collector cut-off current in transistor T1 are compensated by connecting the base over resistor R3 to the collector of transistor T2 which operates with an open-circuited base. In a modification, Fig. 2 (not shown), two transistors are operated from the same supply and the base resistor R2 is omitted. When a common base transistor T1 is employed, Fig. 3, the emitter is connected over a resistor R10 to the emitter of the compensating transitsor T2, the emitter of transistor T1 being connected over resistor R8 to a positive supply EE. The compensating transistors T2 are operated with open-circuit base electrodes so that the actual collector current is substantially proportional to the collector cut-off current.
Patent GB-1421883-A (GB)
Title: Hatch construction of 2-phenyl-vinyl phosphonic acid
IPC: F17C13/00
Filed: 1974-06-19
Abstract: 1421883 Hatch covers; tanks MITSUBISHI JUKOGYO KK 19 June 1974 [22 June 1973] 27167/74 Heading B7S [Also in Division F4] A hatch construction in a cryogenic tank comprises a hatch dome 4 slidable in an opening in the tank wall, which wall has an outer shell la and insulation 2, wherein the dome 4 is connected by supports 15 to tank shell la, respective ends of the supports being pivoted in eyes 16, 17 on the shell and dome, and wherein a flexible membrane 24 sealingly interconnects the dome 4 and shell la, a heat insulating material 25 being located within the membrane. Connection of a pipe 8 held in dome cover 20 to a discharge pipe 26 for a pump 7 at the bottom of the tank is shown in Fig. 4. The connection permits relative axial sliding movement of pipe 8 within pipe 26 a gasket 29 serving to create a fluid-tight sliding connection. Materials.-Membrane 24 may be made of stainless steel, rubber or polytetrafluoroethylene and heat insulating material 25 may be polyurethan foam, rock wool or pearlite. Gasket 29 may be made of polytetrafluoroethylene, aluminium or copper.